B
14 1/2"
A
Ceiling Opening:
1.
Determine the exact position of the fi replace so that the vent pipe is centered (if possible)
between two building framing members. Lay out the vent system path, minimizing the
number of elbows and length of vent. Consult your local building codes prior to proceed-
ing.
2. Cut and frame a 14 1/2" opening in the fl oor, ceiling or roof where the vent system will
pass. Size of the opening in the roof may need to be increased as the pitch of the roof
increases. Avoid cutting rafters.
Ceiling Firestop:
Where a vent pipe passes through a fl oor or ceiling, a ceiling fi restop (TCVT.THIMA) must
be used to retain insulation and maintain proper clearances.
From below, push the ceiling fi restop through the opening and secure in place. If the fi restop
is used to penetrate a fl oor, the outer shield may be trimmed in length. If the fi restop pen-
etrates into an attic, leave the shield full length to keep insulation away from the vent pipe.
Additionally, after the vent pipe is in place, install a storm collar on top of the shield. This will
prevent loose insulation from falling into the area between the vent pipe and the shield.
Vent Pipe:
1.
Install the fi rst section of vent pipe into
the collar on top of the fi replace. Secure
in place with screws and seal with ap-
proved "High Temperature" self-adhesive
aluminium tape provided.
2.
Continue adding vent pipe lengths up and
through the fi restop(s) and through the
roof. The vent pipe must extend above the
roof according to the sloped roof table in
Fig. #33.
Seal the vent pipe as per "Vent Pipe Sealant"
section.
Roof Support Bracket:
Slip the roof support bracket down over the
vent pipe. Rotate the 90° brackets to accom-
modate roof pitch. Attach the brackets to
the roof joists with nails or building screws.
Tighten the band around the vent pipe and
secure in place with screws.
Fig. #29
Fig. #30
Size of the opening will have to
increase with the pitch of the
roof to ensure a 1 3/4" inch air
space clearance between vent
pipe and combustibles.
Roof Pitch
A
B
0/12
14 1/2"
7 1/4"
4/12
16 1/2"
8 3/4"
6/12 18" 10"
8/12 19
3/4"
11"
12/12 24" 13
3/4"
VENT PIPE
ROOF SUPPORT BRACKET
(TCVT.93915)
20
TCWS.54CODE 102813-40
Содержание TCWS.54OD
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